ADD8709 - Analog Devices

ADD8709 18-Channel Gamma Buffer

The ADD8709 is an 18-channel integrated gamma reference for use in LCD TV and monitors panels. The output buffers feature high current drive and low offset voltage to provide an accurate and stable gamma curve. The top nine channels swing to VDD and the lower nine channels swing to GND. An on-board voltage regulator provides a fixed input for the gamma buffe.

Features

18 precision gamma reference outputs Mask-programmable voltage regulator: 0.4% accuracy Upper 9 buffers swing to VDD Lower 9 buffers swing to GND Single-supply operation: 7.5 V to 16.5 V Gamma current drive: 15 mA per channel Peak output current: 150 mA Output voltage stable under load conditions 48-lead, Pb-free LQFP package APPLICATIONS LCD TV panels LCD monitor panels GENERAL DESCRIPTION The ADD8709 is an 18-channel integrated gamma reference for use in LCD TV and monitors panels. The output buffers feature high current drive and low offset voltage to provide an accurate and stable gamma cu.